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ltunify: show HID++ version

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This commit is contained in:
Peter Wu
2013-04-29 19:52:39 +02:00
parent e9bb1ae6ff
commit 793070ba82
1 changed files with 67 additions and 0 deletions
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67
ltunify.c
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@@ -185,6 +185,11 @@ struct hidpp_message {
};
};
struct hidpp_version {
u8 major;
u8 minor;
};
struct version {
u8 fw_major;
u8 fw_minor;
@@ -202,6 +207,7 @@ struct device {
char name[DEVICE_NAME_MAXLEN + 1]; // include NUL byte
uint32_t serial_number;
u8 power_switch_location;
struct hidpp_version hidpp_version;
struct version version;
};
struct device devices[DEVICES_MAX];
@@ -780,6 +786,61 @@ bool get_device_name(int fd, u8 device_index) {
return false;
}
bool get_hidpp_version(int fd, u8 device_index, struct hidpp_version *version) {
struct hidpp_message msg;
struct msg_short *payload = &msg.msg_short;
u8 softwareId = 0x04; // value 1..15 - random choice for 0x4
u8 ping_data = 0x00; // can be any value
msg.report_id = SHORT_MESSAGE;
msg.device_index = device_index;
msg.sub_id = 0x00; // Root feature index
memset(payload->value, 0, sizeof payload->value);
payload->address = 0x10 | softwareId;
payload->value[2] = ping_data;
if (!do_write(fd, &msg)) {
return false;
}
for (;;) {
if (!do_read(fd, &msg, 3000)) {
if (debug_enabled) {
fprintf(stderr, "Failed to read HID++ version, device does not respond!\n");
}
return false;
}
if (msg.sub_id == 0x8F) {
struct msg_error *error = (struct msg_error *) &msg.msg_error;
if (error->sub_id == 0x00 && error->address == (0x10 | softwareId)) {
// if error is ERR_INVALID_SUBID (0x01), then HID++ 1.0
if (error->error_code == 0x01) {
version->major = 1;
version->minor = 0;
return true;
} else if (debug_enabled) {
const char *err_str = error_messages[error->error_code];
fprintf(stderr, "Failed to retrieve version: %#04x (%s)\n",
error->error_code, err_str);
}
// fatal error - is device connected?
return false;
}
// ignore other errors
}
if (msg.sub_id == 0x00 && (payload->address & 0xF) == softwareId &&
payload->value[2] == ping_data) {
break; // I think we got a version
} else if (debug_enabled) {
fprintf(stderr, "Ignoring sub_id=%02x\n", msg.sub_id);
}
// ignore other messages
}
version->major = payload->value[0];
version->minor = payload->value[1];
return true;
}
// device_index can also be 0xFF for receiver
bool get_device_version(int fd, u8 device_index, u8 version_type, struct val_reg_version *ver) {
struct hidpp_message msg;
@@ -826,6 +887,7 @@ void gather_device_info(int fd, u8 device_index) {
dev->device_present = true;
get_hidpp_version(fd, device_index, &dev->hidpp_version);
get_device_ext_pair_info(fd, device_index);
get_device_name(fd, device_index);
if (get_device_versions(fd, device_index, &dev->version)) {
@@ -863,6 +925,11 @@ void print_detailed_device(u8 device_index) {
return;
}
if (dev->hidpp_version.major) {
printf("HID++ version: %i.%i\n", dev->hidpp_version.major, dev->hidpp_version.minor);
} else {
puts("HID++ version: unknown");
}
printf("Device index %i\n", device_index);
printf("%s\n", device_type_str(dev->device_type));
printf("Name: %s\n", dev->name);