am7xxx-play: support setting the zoom mode
[libam7xxx.git] / src / am7xxx.c
index e5427ca..5481075 100644 (file)
@@ -116,7 +116,7 @@ typedef enum {
        AM7XXX_PACKET_TYPE_DEVINFO = 0x01,
        AM7XXX_PACKET_TYPE_IMAGE   = 0x02,
        AM7XXX_PACKET_TYPE_POWER   = 0x04,
        AM7XXX_PACKET_TYPE_DEVINFO = 0x01,
        AM7XXX_PACKET_TYPE_IMAGE   = 0x02,
        AM7XXX_PACKET_TYPE_POWER   = 0x04,
-       AM7XXX_PACKET_TYPE_UNKNOWN = 0x05,
+       AM7XXX_PACKET_TYPE_ZOOM    = 0x05,
 } am7xxx_packet_type;
 
 struct am7xxx_generic_header {
 } am7xxx_packet_type;
 
 struct am7xxx_generic_header {
@@ -146,6 +146,11 @@ struct am7xxx_power_header {
        uint32_t bit0;
 };
 
        uint32_t bit0;
 };
 
+struct am7xxx_zoom_header {
+       uint32_t bit1;
+       uint32_t bit0;
+};
+
 /*
  * Examples of packet headers:
  *
 /*
  * Examples of packet headers:
  *
@@ -171,6 +176,7 @@ struct am7xxx_header {
                struct am7xxx_devinfo_header devinfo;
                struct am7xxx_image_header image;
                struct am7xxx_power_header power;
                struct am7xxx_devinfo_header devinfo;
                struct am7xxx_image_header image;
                struct am7xxx_power_header power;
+               struct am7xxx_zoom_header zoom;
        } header_data;
 };
 
        } header_data;
 };
 
@@ -211,6 +217,16 @@ static void debug_dump_power_header(am7xxx_context *ctx, struct am7xxx_power_hea
        debug(ctx, "\tbit0: 0x%08x (%u)\n", p->bit0, p->bit0);
 }
 
        debug(ctx, "\tbit0: 0x%08x (%u)\n", p->bit0, p->bit0);
 }
 
+static void debug_dump_zoom_header(am7xxx_context *ctx, struct am7xxx_zoom_header *z)
+{
+       if (ctx == NULL || z == NULL)
+               return;
+
+       debug(ctx, "Zoom header:\n");
+       debug(ctx, "\tbit1: 0x%08x (%u)\n", z->bit1, z->bit1);
+       debug(ctx, "\tbit0: 0x%08x (%u)\n", z->bit0, z->bit0);
+}
+
 static void debug_dump_header(am7xxx_context *ctx, struct am7xxx_header *h)
 {
        if (ctx == NULL || h == NULL)
 static void debug_dump_header(am7xxx_context *ctx, struct am7xxx_header *h)
 {
        if (ctx == NULL || h == NULL)
@@ -236,6 +252,10 @@ static void debug_dump_header(am7xxx_context *ctx, struct am7xxx_header *h)
                debug_dump_power_header(ctx, &(h->header_data.power));
                break;
 
                debug_dump_power_header(ctx, &(h->header_data.power));
                break;
 
+       case AM7XXX_PACKET_TYPE_ZOOM:
+               debug_dump_zoom_header(ctx, &(h->header_data.zoom));
+               break;
+
        default:
                debug(ctx, "Packet type not supported!\n");
                break;
        default:
                debug(ctx, "Packet type not supported!\n");
                break;
@@ -848,6 +868,7 @@ AM7XXX_PUBLIC int am7xxx_set_power_mode(am7xxx_device *dev, am7xxx_power_mode mo
                h.header_data.power.bit2 = 0;
                h.header_data.power.bit1 = 0;
                h.header_data.power.bit0 = 1;
                h.header_data.power.bit2 = 0;
                h.header_data.power.bit1 = 0;
                h.header_data.power.bit0 = 1;
+               break;
 
        case AM7XXX_POWER_MIDDLE:
                h.header_data.power.bit2 = 0;
 
        case AM7XXX_POWER_MIDDLE:
                h.header_data.power.bit2 = 0;
@@ -878,3 +899,47 @@ AM7XXX_PUBLIC int am7xxx_set_power_mode(am7xxx_device *dev, am7xxx_power_mode mo
 
        return 0;
 }
 
        return 0;
 }
+
+AM7XXX_PUBLIC int am7xxx_set_zoom_mode(am7xxx_device *dev, am7xxx_zoom_mode zoom)
+{
+       int ret;
+       struct am7xxx_header h = {
+               .packet_type     = AM7XXX_PACKET_TYPE_ZOOM,
+               .direction       = AM7XXX_DIRECTION_OUT,
+               .header_data_len = sizeof(struct am7xxx_zoom_header),
+               .unknown2        = 0x3e,
+               .unknown3        = 0x10,
+       };
+
+       switch(zoom) {
+       case AM7XXX_ZOOM_ORIGINAL:
+               h.header_data.zoom.bit1 = 0;
+               h.header_data.zoom.bit0 = 0;
+               break;
+
+       case AM7XXX_ZOOM_H:
+               h.header_data.zoom.bit1 = 0;
+               h.header_data.zoom.bit0 = 1;
+               break;
+
+       case AM7XXX_ZOOM_H_V:
+               h.header_data.zoom.bit1 = 1;
+               h.header_data.zoom.bit0 = 0;
+               break;
+
+       case AM7XXX_ZOOM_TEST:
+               h.header_data.zoom.bit1 = 1;
+               h.header_data.zoom.bit0 = 1;
+               break;
+
+       default:
+               error(dev->ctx, "Unsupported zoom mode.\n");
+               return -EINVAL;
+       };
+
+       ret = send_header(dev, &h);
+       if (ret < 0)
+               return ret;
+
+       return 0;
+}