*/
#include <stdio.h>
-#include <endian.h>
+#include <stdlib.h>
#include <errno.h>
#include "am7xxx.h"
+#include "serialize.h"
#define AM7XXX_VENDOR_ID 0x1de1
#define AM7XXX_PRODUCT_ID 0xc101
-#if 1
-static uint8_t reference_image_header[] = {
- 0x02, 0x00, 0x00, 0x00,
- 0x00,
- 0x10,
- 0x3e,
- 0x10,
- 0x01, 0x00, 0x00, 0x00,
- 0x20, 0x03, 0x00, 0x00,
- 0xe0, 0x01, 0x00, 0x00,
- 0x53, 0xE8, 0x00, 0x00
-};
-#endif
-
static void dump_image_header(struct am7xxx_image_header *i)
{
if (i == NULL)
return;
printf("Image header:\n");
- printf("format: 0x%08x (%u)\n", i->format, i->format);
- printf("width: 0x%08x (%u)\n", i->width, i->width);
- printf("height: 0x%08x (%u)\n", i->height, i->height);
- printf("image size: 0x%08x (%u)\n", i->image_size, i->image_size);
+ printf("\tformat: 0x%08x (%u)\n", i->format, i->format);
+ printf("\twidth: 0x%08x (%u)\n", i->width, i->width);
+ printf("\theight: 0x%08x (%u)\n", i->height, i->height);
+ printf("\timage size: 0x%08x (%u)\n", i->image_size, i->image_size);
+}
+
+static void dump_power_header(struct am7xxx_power_header *p)
+{
+ if (p == NULL)
+ return;
+
+ printf("Power header:\n");
+ printf("\tbit2: 0x%08x (%u)\n", p->bit2, p->bit2);
+ printf("\tbit1: 0x%08x (%u)\n", p->bit1, p->bit1);
+ printf("\tbit0: 0x%08x (%u)\n", p->bit0, p->bit0);
}
static void dump_header(struct am7xxx_header *h)
dump_image_header(&(h->header_data.image));
break;
+ case AM7XXX_PACKET_TYPE_POWER:
+ dump_power_header(&(h->header_data.power));
+ break;
+
default:
printf("Packet type not supported!\n");
break;
static inline unsigned int in_80chars(unsigned int i)
{
+ /* The 3 below is the length of "xx " where xx is the hex string
+ * representation of a byte */
return ((i+1) % (80/3));
}
int ret;
int transferred;
+#if DEBUG
+ printf("\nsending -->\n");
dump_buffer(buffer, len);
+ printf("\n");
+#endif
ret = libusb_bulk_transfer(dev, 1, buffer, len, &transferred, 0);
if (ret != 0 || (unsigned int)transferred != len) {
return 0;
}
+static void serialize_header(struct am7xxx_header *h, uint8_t *buffer)
+{
+ uint8_t **buffer_iterator = &buffer;
+
+ put_le32(h->packet_type, buffer_iterator);
+ put_8(h->unknown0, buffer_iterator);
+ put_8(h->header_data_len, buffer_iterator);
+ put_8(h->unknown2, buffer_iterator);
+ put_8(h->unknown3, buffer_iterator);
+ put_le32(h->header_data.data.field0, buffer_iterator);
+ put_le32(h->header_data.data.field1, buffer_iterator);
+ put_le32(h->header_data.data.field2, buffer_iterator);
+ put_le32(h->header_data.data.field3, buffer_iterator);
+}
+
static int send_header(am7xxx_device dev, struct am7xxx_header *h)
{
- union {
- struct am7xxx_header header;
- uint8_t buffer[sizeof (struct am7xxx_header)];
- } data;
+ uint8_t *buffer;
+ int ret;
- data.header = *h;
+#if DEBUG
+ printf("\n");
+ dump_header(h);
+ printf("\n");
+#endif
+
+ buffer = calloc(AM7XXX_HEADER_WIRE_SIZE, 1);
+ if (buffer == NULL) {
+ perror("calloc buffer");
+ return -ENOMEM;
+ }
- return send_data(dev, data.buffer, sizeof (struct am7xxx_header));
+ serialize_header(h, buffer);
+ ret = send_data(dev, buffer, AM7XXX_HEADER_WIRE_SIZE);
+ if (ret < 0)
+ fprintf(stderr, "send_header: failed to send data.\n");
+
+ free(buffer);
+ return ret;
}
am7xxx_device am7xxx_init(void)
{
int ret;
struct am7xxx_header h = {
- .packet_type = htole32(AM7XXX_PACKET_TYPE_IMAGE),
+ .packet_type = AM7XXX_PACKET_TYPE_IMAGE,
.unknown0 = 0x00,
.header_data_len = sizeof(struct am7xxx_image_header),
.unknown2 = 0x3e,
.unknown3 = 0x10,
.header_data = {
.image = {
- .format = htole32(format),
- .width = htole32(width),
- .height = htole32(height),
- .image_size = htole32(size),
+ .format = format,
+ .width = width,
+ .height = height,
+ .image_size = size,
},
},
};
- dump_header(&h);
- printf("\n");
-
- printf("Dump Buffers\n");
- dump_buffer(reference_image_header, sizeof(struct am7xxx_header));
-
ret = send_header(dev, &h);
if (ret < 0)
return ret;
return send_data(dev, image, size);
}
+
+int am7xxx_set_power_mode(am7xxx_device dev, am7xxx_power_mode mode)
+{
+ int ret;
+ struct am7xxx_header h = {
+ .packet_type = AM7XXX_PACKET_TYPE_POWER,
+ .unknown0 = 0x00,
+ .header_data_len = sizeof(struct am7xxx_power_header),
+ .unknown2 = 0x3e,
+ .unknown3 = 0x10,
+ };
+
+ switch(mode) {
+ case AM7XXX_POWER_OFF:
+ h.header_data.power.bit2 = 0;
+ h.header_data.power.bit1 = 0;
+ h.header_data.power.bit0 = 0;
+ break;
+
+ case AM7XXX_POWER_LOW:
+ h.header_data.power.bit2 = 0;
+ h.header_data.power.bit1 = 0;
+ h.header_data.power.bit0 = 1;
+
+ case AM7XXX_POWER_MIDDLE:
+ h.header_data.power.bit2 = 0;
+ h.header_data.power.bit1 = 1;
+ h.header_data.power.bit0 = 0;
+ break;
+
+ case AM7XXX_POWER_HIGH:
+ h.header_data.power.bit2 = 0;
+ h.header_data.power.bit1 = 1;
+ h.header_data.power.bit0 = 1;
+ break;
+
+ case AM7XXX_POWER_TURBO:
+ h.header_data.power.bit2 = 1;
+ h.header_data.power.bit1 = 0;
+ h.header_data.power.bit0 = 0;
+ break;
+
+ default:
+ fprintf(stderr, "Unsupported power mode.\n");
+ return -EINVAL;
+ };
+
+ ret = send_header(dev, &h);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
projects / libam7xxx.git / blobdiff