From: notaz <notasas@gmail.com>
Date: Mon, 9 Mar 2009 20:09:49 +0000 (+0000)
Subject: starting linux code for mx device
X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8c8e818c8fc401948403977a0c9543961ce766c5;p=megadrive.git

starting linux code for mx device
---

diff --git a/mx/linux/Makefile b/mx/linux/Makefile
new file mode 100644
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
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;
+}
+