From 726b85c8e9047aa8584ad1a8ab8d7a6b0595bb46 Mon Sep 17 00:00:00 2001
From: notaz <notasas@gmail.com>
Date: Mon, 9 Mar 2009 22:45:05 +0000
Subject: [PATCH] info commands

---
 mx/linux/main.c | 91 ++++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 86 insertions(+), 5 deletions(-)

diff --git a/mx/linux/main.c b/mx/linux/main.c
index 99748b1..6b95bc0 100644
--- a/mx/linux/main.c
+++ b/mx/linux/main.c
@@ -1,4 +1,5 @@
 #include <stdio.h>
+#include <string.h>
 #include <usb.h>
 
 
@@ -20,7 +21,12 @@ static const struct {
 
 /*****************************************************************************/
 
-struct {
+#define CMD_ATM_READY	0x22
+
+#define CTL_DATA_BUS	0x55	/* refers to data bus controller */
+#define CTL_ADDR_BUS	0xAA	/* .. address bus .. */
+
+typedef struct {
 	u8 magic[4];
 	u8 reserved[11];
 	u8 magic2;
@@ -28,7 +34,6 @@ struct {
 	union {
 		struct {
 			u8 which_device;
-			u8 boot_cmd;
 		} dev_info;
 		struct {
 			u8 addrb2;	/* most significant */
@@ -49,8 +54,46 @@ struct {
 		} times_write;
 	};
 	u8 pad[8];
-} dev_cmd;
+} dev_cmd_t;
+
+typedef struct {
+	u8 firmware_ver[4];
+	u8 bootloader_ver[4];
+	char names[56];
+} dev_info_t;
+
+static void prepare_cmd(dev_cmd_t *dev_cmd, u8 cmd)
+{
+	memset(dev_cmd, 0, sizeof(*dev_cmd));
+
+	memcpy(dev_cmd->magic, "USBC", 4);
+	dev_cmd->magic2 = 0x67; /* "MySCSICommand" */
+	dev_cmd->mx_cmd = cmd;
+}
+
+static int write_cmd(struct usb_dev_handle *dev, dev_cmd_t *cmd)
+{
+	int ret = usb_bulk_write(dev, 0x03, (char *)cmd, sizeof(*cmd), 2000);
+	if (ret < 0) {
+		fprintf(stderr, "failed to write:\n");
+		fprintf(stderr, "%s (%d)\n", usb_strerror(), ret);
+	} else if (ret != sizeof(*cmd))
+		printf("write_cmd: wrote only %d of %d bytes\n", ret, sizeof(*cmd));
+	
+	return ret;
+}
+
+static int read_response(struct usb_dev_handle *dev, void *buff, int size)
+{
+	int ret = usb_bulk_read(dev, 0x82, buff, size, 2000);
+	if (ret < 0) {
+		fprintf(stderr, "failed to read:\n");
+		fprintf(stderr, "%s (%d)\n", usb_strerror(), ret);
+	} else if (ret != size)
+		printf("read_response: read only %d of %d bytes\n", ret, size);
 
+	return ret;
+}
 
 static usb_dev_handle *get_device(void)
 {
@@ -102,7 +145,7 @@ found:
 	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());
+		fprintf(stderr, "%s (%d)\n", usb_strerror(), ret);
 		return NULL;
 	}
 
@@ -117,6 +160,33 @@ found:
 	return handle;
 }
 
+static int read_info(struct usb_dev_handle *device, u8 ctl_id)
+{
+	dev_cmd_t cmd;
+	dev_info_t info;
+	int ret;
+
+	prepare_cmd(&cmd, CMD_ATM_READY);
+	cmd.dev_info.which_device = ctl_id;
+
+	ret = write_cmd(device, &cmd);
+	if (ret < 0)
+		return ret;
+
+	ret = read_response(device, &info, sizeof(info));
+	if (ret < 0)
+		return ret;
+	
+	printf("firmware version:   %X.%X.%X%c\n", info.firmware_ver[0],
+		info.firmware_ver[1], info.firmware_ver[2], info.firmware_ver[3]);
+	printf("bootloader version: %X.%X.%X%c\n", info.bootloader_ver[0],
+		info.bootloader_ver[1], info.bootloader_ver[2], info.bootloader_ver[3]);
+	info.names[sizeof(info.names) - 1] = 0;
+	printf("device name:        %s\n", info.names);
+
+	return 0;
+}
+
 static void release_device(struct usb_dev_handle *device)
 {
 	usb_release_interface(device, 0);
@@ -126,6 +196,7 @@ static void release_device(struct usb_dev_handle *device)
 int main(int argc, char *argv[])
 {
 	struct usb_dev_handle *device;
+	int ret;
 
 	usb_init();
 
@@ -133,10 +204,20 @@ int main(int argc, char *argv[])
 	if (device == NULL)
 		return 1;
 
+	printf("data bus controller:\n");
+	ret = read_info(device, CTL_DATA_BUS);
+	if (ret < 0)
+		goto end;
+
+	printf("address bus controller:\n");
+	ret = read_info(device, CTL_ADDR_BUS);
+	if (ret < 0)
+		goto end;
 
 
+end:
 	release_device(device);
 
-	return 0;
+	return ret;
 }
 
-- 
2.39.5