starting linux code for mx device

diff --git a/mx/linux/Makefile b/mx/linux/Makefile
new file mode 100644 (file)
index 0000000..8f0ca1d
--- /dev/null
+++ b/mx/linux/Makefile
@@ -0,0 +1,5 @@
+
+CC ?= $(CROSS)gcc
+
+CFLAGS += -Wall -ggdb
+LDFLAGS += -lusb

diff --git a/mx/linux/main.c b/mx/linux/main.c
new file mode 100644 (file)
index 0000000..99748b1
--- /dev/null
+++ b/mx/linux/main.c
@@ -0,0 +1,142 @@
+#include <stdio.h>
+#include <usb.h>
+
+
+typedef unsigned char  u8;
+typedef unsigned short u16;
+typedef unsigned int   u32;
+#define array_size(x) (sizeof(x) / sizeof(x[0]))
+
+static const struct {
+       unsigned short vendor;
+       unsigned short product;
+       const char *name;
+} g_devices[] = {
+       { 0x03eb, 0x202a, "16MX+U Game Device" },
+       { 0x03eb, 0x202b, "32MX+U Game Device" },
+       { 0x03eb, 0x202c, "16MX+US Game Device" },
+       { 0x03eb, 0x202d, "32MX+UF Game Device" },
+};
+
+/*****************************************************************************/
+
+struct {
+       u8 magic[4];
+       u8 reserved[11];
+       u8 magic2;
+       u8 mx_cmd;
+       union {
+               struct {
+                       u8 which_device;
+                       u8 boot_cmd;
+               } dev_info;
+               struct {
+                       u8 addrb2;      /* most significant */
+                       u8 addrb1;
+                       u8 addrb0;
+                       u8 num_pages;
+               } rom_rw;
+               struct {
+                       u8 position;
+               } filename;
+               struct {
+                       u8 times_cmd;
+                       u8 action;
+                       u8 cntb3;
+                       u8 cntb2;
+                       u8 cntb1;
+                       u8 cntb0;
+               } times_write;
+       };
+       u8 pad[8];
+} dev_cmd;
+
+
+static usb_dev_handle *get_device(void)
+{
+       struct usb_dev_handle *handle;
+       struct usb_device *dev;
+       struct usb_bus *bus;
+       int i, ret;
+
+       ret = usb_find_busses();
+       if (ret <= 0) {
+               fprintf(stderr, "Can't find USB busses\n");
+               return NULL;
+       }
+
+       ret = usb_find_devices();
+       if (ret <= 0) {
+               fprintf(stderr, "Can't find USB devices\n");
+               return NULL;
+       }
+
+       bus = usb_get_busses();
+       for (; bus; bus = bus->next)
+       {
+               for (dev = bus->devices; dev; dev = dev->next)
+               {
+                       for (i = 0; i < array_size(g_devices); i++)
+                       {
+                               if (dev->descriptor.idVendor == g_devices[i].vendor &&
+                                               dev->descriptor.idProduct == g_devices[i].product)
+                                       goto found;
+                       }
+               }
+       }
+
+       fprintf(stderr, "device not found.\n");
+       return NULL;
+
+found:
+       printf("found %s.\n", g_devices[i].name);
+
+       handle = usb_open(dev);
+       if (handle == NULL) {
+               fprintf(stderr, "failed to open device:\n");
+               fprintf(stderr, "%s\n", usb_strerror());
+               return NULL;
+       }
+
+       ret = usb_set_configuration(handle, 1);
+       if (ret != 0) {
+               fprintf(stderr, "couldn't set configuration for /*/bus/usb/%s/%s:\n",
+                       bus->dirname, dev->filename);
+               fprintf(stderr, "%s\n", usb_strerror());
+               return NULL;
+       }
+
+       ret = usb_claim_interface(handle, 0);
+       if (ret != 0) {
+               fprintf(stderr, "couldn't claim /*/bus/usb/%s/%s:\n",
+                       bus->dirname, dev->filename);
+               fprintf(stderr, "%s (%d)\n", usb_strerror(), ret);
+               return NULL;
+       }
+
+       return handle;
+}
+
+static void release_device(struct usb_dev_handle *device)
+{
+       usb_release_interface(device, 0);
+       usb_close(device);
+}
+
+int main(int argc, char *argv[])
+{
+       struct usb_dev_handle *device;
+
+       usb_init();
+
+       device = get_device();
+       if (device == NULL)
+               return 1;
+
+
+
+       release_device(device);
+
+       return 0;
+}
+