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README.asciidoc: update instructions to test libam7xxx on Windows
[libam7xxx.git] / src / am7xxx.c
diff --git a/src/am7xxx.c b/src/am7xxx.c
index 405d141..7122658 100644 (file)
--- a/src/am7xxx.c
+++ b/src/am7xxx.c
@@ -26,6 +26,7 @@
 
 #include "am7xxx.h"
 #include "serialize.h"
+#include "tools.h"
 
 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
 
@@ -79,7 +80,9 @@ struct am7xxx_usb_device_descriptor {
 };
 
 static int default_set_power_mode(am7xxx_device *dev, am7xxx_power_mode power);
+static int picopix_set_power_mode(am7xxx_device *dev, am7xxx_power_mode power);
 static int default_set_zoom_mode(am7xxx_device *dev, am7xxx_zoom_mode zoom);
+static int picopix_set_zoom_mode(am7xxx_device *dev, am7xxx_zoom_mode zoom);
 
 #define DEFAULT_OPS { \
        .set_power_mode = default_set_power_mode, \
@@ -125,6 +128,10 @@ static const struct am7xxx_usb_device_descriptor supported_devices[] = {
                .product_id = 0x0016,
                .configuration    = 2,
                .interface_number = 0,
+               .ops = {
+                       .set_power_mode = picopix_set_power_mode,
+                       .set_zoom_mode = picopix_set_zoom_mode,
+               },
        },
        {
                .name       = "Philips/Sagemcom PicoPix 2330",
@@ -163,6 +170,11 @@ typedef enum {
        AM7XXX_PACKET_TYPE_IMAGE   = 0x02,
        AM7XXX_PACKET_TYPE_POWER   = 0x04,
        AM7XXX_PACKET_TYPE_ZOOM    = 0x05,
+       AM7XXX_PACKET_TYPE_PICOPIX_POWER_LOW    = 0x15,
+       AM7XXX_PACKET_TYPE_PICOPIX_POWER_MEDIUM = 0x16,
+       AM7XXX_PACKET_TYPE_PICOPIX_POWER_HIGH   = 0x17,
+       AM7XXX_PACKET_TYPE_PICOPIX_ENABLE_TI    = 0x18,
+       AM7XXX_PACKET_TYPE_PICOPIX_DISABLE_TI   = 0x19,
 } am7xxx_packet_type;
 
 struct am7xxx_generic_header {
@@ -228,6 +240,18 @@ struct am7xxx_header {
 
 
 #ifdef DEBUG
+static void debug_dump_generic_header(am7xxx_context *ctx, struct am7xxx_generic_header *g)
+{
+       if (ctx == NULL || g == NULL)
+               return;
+
+       debug(ctx, "Generic header:\n");
+       debug(ctx, "\tfield0:  0x%08x (%u)\n", g->field0, g->field0);
+       debug(ctx, "\tfield1:  0x%08x (%u)\n", g->field1, g->field1);
+       debug(ctx, "\tfield2:  0x%08x (%u)\n", g->field2, g->field2);
+       debug(ctx, "\tfield3:  0x%08x (%u)\n", g->field3, g->field3);
+}
+
 static void debug_dump_devinfo_header(am7xxx_context *ctx, struct am7xxx_devinfo_header *d)
 {
        if (ctx == NULL || d == NULL)
@@ -306,7 +330,8 @@ static void debug_dump_header(am7xxx_context *ctx, struct am7xxx_header *h)
                break;
 
        default:
-               debug(ctx, "Packet type not supported!\n");
+               debug(ctx, "Parsing data not supported for this packet type!\n");
+               debug_dump_generic_header(ctx, &(h->header_data.data));
                break;
        }
        debug(ctx, "END\n\n");
@@ -573,6 +598,28 @@ static int send_header(am7xxx_device *dev, struct am7xxx_header *h)
        return ret;
 }
 
+static int send_command(am7xxx_device *dev, am7xxx_packet_type type)
+{
+       struct am7xxx_header h = {
+               .packet_type     = type,
+               .direction       = AM7XXX_DIRECTION_OUT,
+               .header_data_len = 0x00,
+               .unknown2        = 0x3e,
+               .unknown3        = 0x10,
+               .header_data = {
+                       .data = {
+                               .field0 = 0,
+                               .field1 = 0,
+                               .field2 = 0,
+                               .field3 = 0,
+                       },
+               },
+       };
+
+       return send_header(dev, &h);
+}
+
+
 /* When level == AM7XXX_LOG_FATAL do not check the log_level from the context
  * and print the message unconditionally, this makes it possible to print
  * fatal messages even early on initialization, before the context has been
@@ -855,6 +902,26 @@ static int default_set_power_mode(am7xxx_device *dev, am7xxx_power_mode power)
        return 0;
 }
 
+static int picopix_set_power_mode(am7xxx_device *dev, am7xxx_power_mode power)
+{
+       switch(power) {
+       case AM7XXX_POWER_LOW:
+               return send_command(dev, AM7XXX_PACKET_TYPE_PICOPIX_POWER_LOW);
+
+       case AM7XXX_POWER_MIDDLE:
+               return send_command(dev, AM7XXX_PACKET_TYPE_PICOPIX_POWER_MEDIUM);
+
+       case AM7XXX_POWER_HIGH:
+               return send_command(dev, AM7XXX_PACKET_TYPE_PICOPIX_POWER_HIGH);
+
+       case AM7XXX_POWER_OFF:
+       case AM7XXX_POWER_TURBO:
+       default:
+               error(dev->ctx, "Unsupported power mode.\n");
+               return -EINVAL;
+       };
+}
+
 static int default_set_zoom_mode(am7xxx_device *dev, am7xxx_zoom_mode zoom)
 {
        int ret;
@@ -887,6 +954,7 @@ static int default_set_zoom_mode(am7xxx_device *dev, am7xxx_zoom_mode zoom)
                h.header_data.zoom.bit0 = 1;
                break;
 
+       case AM7XXX_ZOOM_TELE:
        default:
                error(dev->ctx, "Unsupported zoom mode.\n");
                return -EINVAL;
@@ -899,6 +967,41 @@ static int default_set_zoom_mode(am7xxx_device *dev, am7xxx_zoom_mode zoom)
        return 0;
 }
 
+static int picopix_set_zoom_mode(am7xxx_device *dev, am7xxx_zoom_mode zoom)
+{
+       int ret;
+       am7xxx_packet_type packet_type;
+
+       switch(zoom) {
+       case AM7XXX_ZOOM_ORIGINAL:
+               packet_type = AM7XXX_PACKET_TYPE_PICOPIX_DISABLE_TI;
+               break;
+
+       case AM7XXX_ZOOM_TELE:
+               packet_type = AM7XXX_PACKET_TYPE_PICOPIX_ENABLE_TI;
+               break;
+
+       case AM7XXX_ZOOM_H:
+       case AM7XXX_ZOOM_H_V:
+       case AM7XXX_ZOOM_TEST:
+       default:
+               error(dev->ctx, "Unsupported zoom mode.\n");
+               return -EINVAL;
+       };
+
+       ret = send_command(dev, packet_type);
+       if (ret < 0)
+               return ret;
+
+       /* The Windows drivers wait for 100ms and send the same command again,
+        * probably to overcome a firmware deficiency */
+       ret = msleep(100);
+       if (ret < 0)
+               return ret;
+
+       return send_command(dev, packet_type);
+}
+
 /* Public API */
 
 AM7XXX_PUBLIC int am7xxx_init(am7xxx_context **ctx)
@@ -1025,31 +1128,18 @@ AM7XXX_PUBLIC int am7xxx_get_device_info(am7xxx_device *dev,
                           am7xxx_device_info *device_info)
 {
        int ret;
-       struct am7xxx_header h = {
-               .packet_type     = AM7XXX_PACKET_TYPE_DEVINFO,
-               .direction       = AM7XXX_DIRECTION_OUT,
-               .header_data_len = 0x00,
-               .unknown2        = 0x3e,
-               .unknown3        = 0x10,
-               .header_data = {
-                       .devinfo = {
-                               .native_width  = 0,
-                               .native_height = 0,
-                               .unknown0      = 0,
-                               .unknown1      = 0,
-                       },
-               },
-       };
+       struct am7xxx_header h;
 
        if (dev->device_info) {
                memcpy(device_info, dev->device_info, sizeof(*device_info));
                return 0;
        }
 
-       ret = send_header(dev, &h);
+       ret = send_command(dev, AM7XXX_PACKET_TYPE_DEVINFO);
        if (ret < 0)
                return ret;
 
+       memset(&h, 0, sizeof(h));
        ret = read_header(dev, &h);
        if (ret < 0)
                return ret;
Open Source library to communicate via USB with Projectors and Digital Picture Frames based on the Actions Micro AM7XXX family of ICs