| 1 | #include <stdio.h> |
| 2 | #include <string.h> |
| 3 | #include <usb.h> |
| 4 | |
| 5 | |
| 6 | typedef unsigned char u8; |
| 7 | typedef unsigned short u16; |
| 8 | typedef unsigned int u32; |
| 9 | #define array_size(x) (sizeof(x) / sizeof(x[0])) |
| 10 | |
| 11 | static const struct { |
| 12 | unsigned short vendor; |
| 13 | unsigned short product; |
| 14 | const char *name; |
| 15 | } g_devices[] = { |
| 16 | { 0x03eb, 0x202a, "16MX+U Game Device" }, |
| 17 | { 0x03eb, 0x202b, "32MX+U Game Device" }, |
| 18 | { 0x03eb, 0x202c, "16MX+US Game Device" }, |
| 19 | { 0x03eb, 0x202d, "32MX+UF Game Device" }, |
| 20 | }; |
| 21 | |
| 22 | /*****************************************************************************/ |
| 23 | |
| 24 | #define CMD_ATM_READY 0x22 |
| 25 | |
| 26 | #define CTL_DATA_BUS 0x55 /* refers to data bus controller */ |
| 27 | #define CTL_ADDR_BUS 0xAA /* .. address bus .. */ |
| 28 | |
| 29 | typedef struct { |
| 30 | u8 magic[4]; |
| 31 | u8 reserved[11]; |
| 32 | u8 magic2; |
| 33 | u8 mx_cmd; |
| 34 | union { |
| 35 | struct { |
| 36 | u8 which_device; |
| 37 | } dev_info; |
| 38 | struct { |
| 39 | u8 addrb2; /* most significant */ |
| 40 | u8 addrb1; |
| 41 | u8 addrb0; |
| 42 | u8 num_pages; |
| 43 | } rom_rw; |
| 44 | struct { |
| 45 | u8 position; |
| 46 | } filename; |
| 47 | struct { |
| 48 | u8 times_cmd; |
| 49 | u8 action; |
| 50 | u8 cntb3; |
| 51 | u8 cntb2; |
| 52 | u8 cntb1; |
| 53 | u8 cntb0; |
| 54 | } times_write; |
| 55 | }; |
| 56 | u8 pad[8]; |
| 57 | } dev_cmd_t; |
| 58 | |
| 59 | typedef struct { |
| 60 | u8 firmware_ver[4]; |
| 61 | u8 bootloader_ver[4]; |
| 62 | char names[56]; |
| 63 | } dev_info_t; |
| 64 | |
| 65 | static void prepare_cmd(dev_cmd_t *dev_cmd, u8 cmd) |
| 66 | { |
| 67 | memset(dev_cmd, 0, sizeof(*dev_cmd)); |
| 68 | |
| 69 | memcpy(dev_cmd->magic, "USBC", 4); |
| 70 | dev_cmd->magic2 = 0x67; /* "MySCSICommand" */ |
| 71 | dev_cmd->mx_cmd = cmd; |
| 72 | } |
| 73 | |
| 74 | static int write_cmd(struct usb_dev_handle *dev, dev_cmd_t *cmd) |
| 75 | { |
| 76 | int ret = usb_bulk_write(dev, 0x03, (char *)cmd, sizeof(*cmd), 2000); |
| 77 | if (ret < 0) { |
| 78 | fprintf(stderr, "failed to write:\n"); |
| 79 | fprintf(stderr, "%s (%d)\n", usb_strerror(), ret); |
| 80 | } else if (ret != sizeof(*cmd)) |
| 81 | printf("write_cmd: wrote only %d of %d bytes\n", ret, sizeof(*cmd)); |
| 82 | |
| 83 | return ret; |
| 84 | } |
| 85 | |
| 86 | static int read_response(struct usb_dev_handle *dev, void *buff, int size) |
| 87 | { |
| 88 | int ret = usb_bulk_read(dev, 0x82, buff, size, 2000); |
| 89 | if (ret < 0) { |
| 90 | fprintf(stderr, "failed to read:\n"); |
| 91 | fprintf(stderr, "%s (%d)\n", usb_strerror(), ret); |
| 92 | } else if (ret != size) |
| 93 | printf("read_response: read only %d of %d bytes\n", ret, size); |
| 94 | |
| 95 | return ret; |
| 96 | } |
| 97 | |
| 98 | static usb_dev_handle *get_device(void) |
| 99 | { |
| 100 | struct usb_dev_handle *handle; |
| 101 | struct usb_device *dev; |
| 102 | struct usb_bus *bus; |
| 103 | int i, ret; |
| 104 | |
| 105 | ret = usb_find_busses(); |
| 106 | if (ret <= 0) { |
| 107 | fprintf(stderr, "Can't find USB busses\n"); |
| 108 | return NULL; |
| 109 | } |
| 110 | |
| 111 | ret = usb_find_devices(); |
| 112 | if (ret <= 0) { |
| 113 | fprintf(stderr, "Can't find USB devices\n"); |
| 114 | return NULL; |
| 115 | } |
| 116 | |
| 117 | bus = usb_get_busses(); |
| 118 | for (; bus; bus = bus->next) |
| 119 | { |
| 120 | for (dev = bus->devices; dev; dev = dev->next) |
| 121 | { |
| 122 | for (i = 0; i < array_size(g_devices); i++) |
| 123 | { |
| 124 | if (dev->descriptor.idVendor == g_devices[i].vendor && |
| 125 | dev->descriptor.idProduct == g_devices[i].product) |
| 126 | goto found; |
| 127 | } |
| 128 | } |
| 129 | } |
| 130 | |
| 131 | fprintf(stderr, "device not found.\n"); |
| 132 | return NULL; |
| 133 | |
| 134 | found: |
| 135 | printf("found %s.\n", g_devices[i].name); |
| 136 | |
| 137 | handle = usb_open(dev); |
| 138 | if (handle == NULL) { |
| 139 | fprintf(stderr, "failed to open device:\n"); |
| 140 | fprintf(stderr, "%s\n", usb_strerror()); |
| 141 | return NULL; |
| 142 | } |
| 143 | |
| 144 | ret = usb_set_configuration(handle, 1); |
| 145 | if (ret != 0) { |
| 146 | fprintf(stderr, "couldn't set configuration for /*/bus/usb/%s/%s:\n", |
| 147 | bus->dirname, dev->filename); |
| 148 | fprintf(stderr, "%s (%d)\n", usb_strerror(), ret); |
| 149 | return NULL; |
| 150 | } |
| 151 | |
| 152 | ret = usb_claim_interface(handle, 0); |
| 153 | if (ret != 0) { |
| 154 | fprintf(stderr, "couldn't claim /*/bus/usb/%s/%s:\n", |
| 155 | bus->dirname, dev->filename); |
| 156 | fprintf(stderr, "%s (%d)\n", usb_strerror(), ret); |
| 157 | return NULL; |
| 158 | } |
| 159 | |
| 160 | return handle; |
| 161 | } |
| 162 | |
| 163 | static int read_info(struct usb_dev_handle *device, u8 ctl_id) |
| 164 | { |
| 165 | dev_cmd_t cmd; |
| 166 | dev_info_t info; |
| 167 | int ret; |
| 168 | |
| 169 | prepare_cmd(&cmd, CMD_ATM_READY); |
| 170 | cmd.dev_info.which_device = ctl_id; |
| 171 | |
| 172 | ret = write_cmd(device, &cmd); |
| 173 | if (ret < 0) |
| 174 | return ret; |
| 175 | |
| 176 | ret = read_response(device, &info, sizeof(info)); |
| 177 | if (ret < 0) |
| 178 | return ret; |
| 179 | |
| 180 | printf("firmware version: %X.%X.%X%c\n", info.firmware_ver[0], |
| 181 | info.firmware_ver[1], info.firmware_ver[2], info.firmware_ver[3]); |
| 182 | printf("bootloader version: %X.%X.%X%c\n", info.bootloader_ver[0], |
| 183 | info.bootloader_ver[1], info.bootloader_ver[2], info.bootloader_ver[3]); |
| 184 | info.names[sizeof(info.names) - 1] = 0; |
| 185 | printf("device name: %s\n", info.names); |
| 186 | |
| 187 | return 0; |
| 188 | } |
| 189 | |
| 190 | static void release_device(struct usb_dev_handle *device) |
| 191 | { |
| 192 | usb_release_interface(device, 0); |
| 193 | usb_close(device); |
| 194 | } |
| 195 | |
| 196 | int main(int argc, char *argv[]) |
| 197 | { |
| 198 | struct usb_dev_handle *device; |
| 199 | int ret; |
| 200 | |
| 201 | usb_init(); |
| 202 | |
| 203 | device = get_device(); |
| 204 | if (device == NULL) |
| 205 | return 1; |
| 206 | |
| 207 | printf("data bus controller:\n"); |
| 208 | ret = read_info(device, CTL_DATA_BUS); |
| 209 | if (ret < 0) |
| 210 | goto end; |
| 211 | |
| 212 | printf("address bus controller:\n"); |
| 213 | ret = read_info(device, CTL_ADDR_BUS); |
| 214 | if (ret < 0) |
| 215 | goto end; |
| 216 | |
| 217 | |
| 218 | end: |
| 219 | release_device(device); |
| 220 | |
| 221 | return ret; |
| 222 | } |
| 223 | |